feat: add support for accessor arrays and refactor stats/base/cumax

[vivekmaurya001]

Resolves #{{TODO: add issue number}}.

This pull request:

• add accessor arrays support and refactor stats/base/cumax

Related Issues

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This pull request:

• resolves #{{TODO: add issue number}}

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Coverage Report

Package	Statements	Branches	Functions	Lines
stats/base/cumax	$\color{green}361/361$ $\color{green}+100.00\%$	$\color{green}34/34$ $\color{green}+100.00\%$	$\color{green}3/3$ $\color{green}+100.00\%$	$\color{green}361/361$ $\color{green}+100.00\%$

The above coverage report was generated for the changes in this PR.

[vivekmaurya001]

/stdlib lint-autofix

[vivekmaurya001]

@kgryte , I have tried to remove the error occuring in accessor file example , can u please take a look how to resolve error

[vivekmaurya001]

@kgryte , thanks for help , now it is ready for review

[vivekmaurya001]

@kgryte , i have reviewed it again and maded some undone changes from reference

[kgryte]

LGTM. Thanks, @vivekmaurya001!